Finding the Fourth Proportional to 1,386,038.12, 2,079,232.14 and 487,268.60
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Solution
The fourth proportional to 1,386,038.12, 2,079,232.14 and 487,268.60 is: 730,964.41
Step by Step Solution
- Step 1: Write the proportion equation
1,386,038.12 : 2,079,232.14 = 487,268.60 : x - Step 2: Convert to fraction form
1,386,038.12/2,079,232.14 = 487,268.60/x - Step 3: Cross multiply
1,386,038.12x = 2,079,232.14 × 487,268.60 - Step 4: Simplify right side
1,386,038.12x = 1,013,144,533,932.80 - Step 5: Solve for x
x = 1,013,144,533,932.80/1,386,038.12 - Step 6: Final answer
x = 730,964.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.